"Obesity steals more years than diabetes, tobacco, high blood pressure and high cholesterol -- the other top preventable health problems that cut Americans' lives short, according to researchers who analyzed 2014 data."
https://www.webmd.com/diabetes/news/20170424/the-top-5-condi...
"Obesity is associated with nearly 1 in 5 US deaths, according to a study published online August 15 in the American Journal of Public Health."
https://www.medscape.com/viewarticle/809516
It should also be part of the climate change discussion:
"Overall, being obese is associated with about 20% more greenhouse gas emissions (carbon dioxide, methane and nitrous oxide) than being a normal weight"
https://www.webmd.com/diet/obesity/news/20191220/growing-obe...